Each year, hundreds of thousands of people die of famine across the planet, and with the effects of climate change spiraling, that number is pretty much guaranteed to climb. But in 2021, a team of intercontinental researchers had a wacky idea for how to mitigate it all. Plants, they realized, would be key. The world needs crops to feed its ever-growing population; it needs trees and grasses to capture and absorb carbon, to reduce temperatures and pollution, enrich the soil, and more.